Quarter	US dollars
2004-12-31	307
2005-03-31	352
2005-06-30	355
2005-09-30	325
2005-12-31	367
2006-03-31	432
2006-06-30	440
2006-09-30	428
2006-12-31	425
2007-03-31	465
2007-06-30	516
2007-09-30	558
2007-12-31	547
2008-03-31	1540
2008-06-30	1721
2008-09-30	1431
2008-12-31	1052
2009-03-31	943
2009-06-30	963
2009-09-30	1059
2009-12-31	1085
2010-03-31	1133
2010-06-30	622
2010-09-30	1160
2010-12-31	1677
2011-03-31	1452
2011-06-30	1501
2011-09-30	1338
2011-12-31	1345
2012-03-31	1363
2012-06-30	1438
2012-09-30	1445
2012-12-31	1411
2013-03-31	1518
2013-06-30	1596
2013-09-30	1788
2013-12-31	1797
2014-03-31	1969
2014-06-30	1281
2014-09-30	1297
2014-12-31	1217
2015-03-31	1152
2015-06-30	1359
2015-09-30	997
2015-12-31	1005
2016-03-31	1034
2016-06-30	1258
2016-09-30	1168
2016-12-31	1220
2017-03-31	1286
2017-06-30	600
2017-09-30	590
2017-12-31	526
2018-03-31	567
2018-06-30	556
2018-09-30	462
2018-12-31	507
2019-03-31	451
2019-06-30	424
2019-09-30	429
2019-12-31	425
2020-03-31	334
2020-06-30	310
2020-09-30	344
2020-12-31	343
2021-03-31	302
2021-06-30	274
2021-09-30	338
2021-12-31	365
2022-03-31	349
2022-06-30	346
2022-09-30	380
2022-12-31	374
2023-03-31	304
2023-06-30	277
2023-09-30	264